NOTE: Direct port from my plugin from 3.5. If you are currently using that plugin, no need to upgrade even if you are using version 3.6.x of Vbulletin.

This extension will automatically check new posts against the Akismet spam rulesets and identify spam if it is posted on your site. All spam is set to moderated status until an admin/moderator approves/deletes it.

This setting can be set on a usergroup basis so only certain usergroups are scanned.

I have no affiliation with Akismet, I just know that it catches about 99% of all spam I get on my blogs.

You will need an API key to use this product, but they are free and you can get one immediately at wordpress.com when you sign up.

Installs easily, just upload the included files, and install the product file. NO TEMPLATE EDITS!

Probably possible, I just have no time to do it. If users are going to go that far to post spam, well, I suppose that would be one way around it, although it may very well be that the IP they are using is associated with SPAM so it would be taken care of when they post..